Conventional wisdom dictates stars like our Sun are prime candidates to search for other potentially habitable worlds.

However, it is counterintuitively slightly cooler and less luminous stars than our Sun, classified as K dwarfs, which are the true “Goldilocks stars,” according to Professor Edward Guinan of Villanova University.

Professor Guinan said: ”K-dwarf stars are in the ‘sweet spot’, with properties intermediate between the rarer, more luminous, but shorter-lived solar-type stars (G stars) and the more numerous red dwarf stars (M stars).

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